Starter Motor 12V 1.2KW 10T OE 56044734AA 17939N For Jeep Grand Cherokee Commander 3.7L V6 2005-2010

Specificationvo: Voltage：12 voltpo: Power KWt：1.2 kwte: Number of teeth：10 pcsro: Rotation ：CR a: Size A：65 mmb: Drive distance：5 mmod: Drive diameter ( outer )：31.5 mmo1: Number of mounting holes：2 pcso2: Number of threaded mounting holes：2 pcsle: Lenght：183 mm✅Replaces OEM Part Numbers:56044734AASTM3475AB, STM3475BA, STM3475LC, STM3475RD, STM3475RN, STM3475US, STM3475ZDM000T31471, M000T31471ZC, M0T31471, M0T31471ZCWPS：17939N✅ Hassle-Free Warranty12-Month Warranty. Free replacement or full refund for factory defective products.Returns & Refund:30-day free return will be provided.-Please note that the situations below will not be accounted:-Ordered by mistake.-Don't like it.-Duplicated orders.-Damaged product during installation.-Man-made damage & improper installation failure.Compatible ModelsJEEP■ 2005-2010 JEEP Grand Cherokee 3.7L V6■ 2006-2010 JEEP Commander 3.7L V6Car Starter Motor User ManualApplicable: Conventional Automotive Solenoid Engagement Starter Motor(Passenger Cars / Light Commercial Vehicles)Core Content: Operation + Wiring + Maintenance + Quick Troubleshooting, Simple & PracticalMain StructureDC Motor + Solenoid Switch (B/30 Main Positive, S/50 Control Positive, M/C Motor Terminal)One-Way Clutch + Shift ForkThe motor housing serves as the negative ground terminal naturally.Operating Instructions (Important for Damage Prevention)Before starting: Manual transmission to Neutral Gear; Automatic transmission to Parking (P) Gear, pull up the handbrake.Starting Operation: Turn the ignition key to START position, release immediately after engine ignition (the switch will reset automatically).Operation Prohibition:Single starting duration ≤ 3-5 seconds;If failed, wait 10-15 seconds before retrying;Stop operation for inspection after 3 consecutive failures.Do not turn the ignition to START again after the engine is running.Low-temperature Starting: Stay at ON position for several seconds for system self-check first, then start the engine to reduce battery consumption.Standard Wiring Instructions (Universal Type)With Starter Relay (Recommended)Battery Positive → Relay Power Terminal → Starter B/30 (Thick Cable, Fasten Tightly)Ignition Switch Start Gear → Relay Control TerminalRelay Output Terminal → Starter S/50 (Thin Control Cable)Battery Negative → Vehicle Body / Engine Ground (Form complete circuit with starter ground)M/C terminal is internal wiring, no external connection required.Direct Control Without Relay (Old / Compact Vehicles)Battery Positive connect to B/30; Ignition Start Gear connect to S/50 for direct control.Do not hold the start gear for a long time.General Wiring RequirementsNo loose terminals or oxidation; no rust or oil stains on ground connection points, keep good conductive contact.Routine Maintenance (Every 3 Months / 5,000 KM)Fastening Check: No cracks on housing; mounting bolts fully tightened, no loose abnormal noise.Circuit Check: No burn or oxidation on terminals; wire insulation no aging. Polish oxidized terminals with sandpaper and apply a small amount of conductive grease.Ground Check: Clean rust on connection points between starter, engine and vehicle body to ensure stable conduction.Mechanical Check: Shift fork moves smoothly without jamming; one-way clutch rotates forward freely and locks reversely.Special Reminder: If the starter gets waterlogged after wading, dry it completely before starting to avoid coil short circuit.Common Faults & Quick Troubleshooting1.No response when turning start gearProbable Cause: Battery low power, poor ground connection, loose wiring, or solenoid switch failureSimple Solution: Test the battery voltage (must be ≥12V), fasten all loose terminals, and clean rust on the ground connection points2.Clicking sound but no rotation / slow rotationProbable Cause: Battery low power, poor solenoid attraction, or worn carbon brushesSimple Solution: Use jump start for auxiliary power, polish oxidized terminals, and replace worn carbon brushes3.Starter rotates but engine cannot startProbable Cause: Poor gear meshing, damaged flywheel gear teeth, or slipping one-way clutchSimple Solution: Inspect the gear for damage, and replace the clutch assembly if slipping occurs4.Starter cannot disengage after engine startProbable Cause: Shift fork jamming, or solenoid/ignition switch fails to resetSimple Solution: Turn off the engine immediately, inspect the switch status, and clean foreign matters on the shift forkSafety Warnings1.Always disconnect the battery negative terminal before wiring or maintenance to prevent short circuit, fire or electric shock.2.The starter works with extremely high current. Do not touch wiring terminals or moving parts to avoid burn injury.3.Replace with original compatible model only. Non-professionals are prohibited from disassembling internal precision parts.4.Stop use and cut off power immediately if burning smell, smoke or terminal ablation occurs.